Blanca Elaine Callahan (née Reyes) is a Puerto Rican-born contemporary Christian pop artist. From 2003-2013 she was a part of the Christian rap/pop group Group 1 Crew, along with her brother Manwell, appearing on the group’s first four albums. With Group 1 Crew she won five GMA Dove Awards, the Christian equivalent of a Grammy.

She left the group 2013 to focus on her family and to pursue a solo career. On May 4, 2015, she released her debut solo album Blanca.